#pragma once;
// The following ifdef block is the standard way of creating macros which make exporting 
// from a DLL simpler. All files within this DLL are compiled with the COMMONDLL_EXPORTS
// symbol defined on the command line. this symbol should not be defined on any project
// that uses this DLL. This way any other project whose source files include this file see 
// COMMONDLL_API functions as being imported from a DLL, whereas this DLL sees symbols
// defined with this macro as being exported.
#ifdef COMMONDLL_EXPORTS
#define COMMONDLL_API __declspec(dllexport)
#else
#define COMMONDLL_API __declspec(dllimport)
#endif

class CommonDLLImpl;

// This class is exported from the MainDLL.dll
class COMMONDLL_API CommonDLL {
private:
    CommonDLL(void);
    virtual ~CommonDLL(void);

    CommonDLLImpl* m_pImpl;

public:
    // Return a static instance of this class
    static CommonDLL* Instance();

};

